Electric controller.



PATENTED SEPT. 18, 1906.

C. E. SHEDRICK.

ELECTRIC CONTROLLER.

APPLICATION FILED AUG. 12, 1905.

Inventor,

UNITED STATES PATENT OFFICE.

CHARLES a SHEDRICK, 0F SHERBROOKE, QUEBEC, CANADAj ELECTRIG CONTROLLER'man sq. is, 100e.

Anima. m mgm minos. um L mans.

To all whom it may concern:

Be it known that I, Cnaanns E. SnEDaIcx, a subject of the King of land,residing at Sherbrooke, county of Sher rooke, Province of Quebec,Dominion of Canada, have invented certain new and useful Im rovementsinElectric Controllers; and I do ereby declare that the following is afull, clear, and exact description of the invention, such as will enableothers skilled'in the art to which it appertains to make and use thesame.

M 'invention relates to electric controllers.

T e object of my inventionfis to provide an a paratus articularlyfor'electric lights whic is simp e in construction and automatic in itsaction.

A further object of my invention is to provide'adjustable means -for apl the invention to a varying number of) e ectric lights or for similarpurposes; and my invention consists of the construction, combination,and arrangement of parts, Yas herein illustrated, described, andclaimed.

In the accom anying drawings, fo part of this app ication, I haveillustra one form of embodiment of my invention, in

which drawings similar reference characters designate correspon parts,andinwhich- Figure 1 is a side e evation. Fig. 2 is a plan. Fig. 3 is acentral vertical section taken longitudinally approximately on line 3 3of Fig. 2, and Fig. 4 is a`transverse vertical section takenapproximately on line 4 4 of 2. d d b e erring to rawings,5 esignates aase, in one corner of which is disposed a bindingpost 6, which receivesa feed-wire 7. Disposed adjacent the o posite sides of the base areplates 8, on whic are disposed standards 9 in electrical connection withkthe plates. The feed-wire 7 is carried from the bindingpost 6 andplaced in electrical connection with the plate 8 on one side of thebase. The

r ends of the standards 9 are provided wit bearings 10, xadapted toreceive the rockable shaft 11. Disposed on rockable shaft intermediateof the beari are a plurality of receptacles orcu 12, t e periphery ofeach of which is provil ed with an o which may be conveniently closed,as y the screws 12.` Each of the receptacles 12 is inelectrical-connection with its adjacent rockshaft 11, and saidreceptacles are electrically se V'n.rated, as b the disk 13, com sed ofsuitable insulat1on,.which also ins ates adjacent ends of therock-shaft.

`14 and For the purpose of making electrical connection betweenreceptacles 12 the disk 13 is provided with an opening 14, and each ofsaid receptacles has'therem a body of fluid conduct mattei; 15,preferably mercury. It should Fig'. 3 that a connection vll be made beL'tween said receptacles when they are rocked in such position that themercury can flowthrough opening 14 and that they will be apparent uponan inspection of electrically separated when they are rocked to such a'tion that the o 14 is above the .leml of the mercur facilietween saidcups and to prevent disarrangement of the working of the apparatus bythe mercury beL coming clogged 1n said openin I provide a member- 16,disposed through tide disk 13 and preferably composed of platinum and ofan inverted-U sha with its ends disposed with relation to the evel ofthe mercury, so that in one position it will not contact therewith andthat when in another osition it will contact with the mercury, andpthereby brid e the insulated space and form an electrica connectionbetweensaid receptacles.

Carried one side of the receptacles is a b screw-threaded rod 17,adapted to receive the nut 18 and a check-nut 19. Disposed on one end ofthe base 5 is a standard 20, provided at its upper end with an offset21, on which is disposed a'bod of insulation 22, in the path of movemento the rod 17 when the receptacles 12 are rocked.

Projectin from and carried by one side of the receptac es 12 is a rod23, to which is connected a link 24, ca preferabl a plate o metalworking into a series co A26, and leading from the coil is a wire 27,carried to the binding-po base 5, from whence it is carried on tothelights orplace of consumption.

In the operation of my invention the nut 18 and the check-nut'19 areset' at such distance on the screw-threaded rod 17 that the electricalcurrent necessary to run a given number of lights will not energize thecoil 26 suiciently to attract the core 25, and thereby rock thereceptacles '12 sufficiently to break the connectiontherebetween. Shouldg a core 25, which is 9s Y st 28 on the more -lights be added to thecircuit or more current turned on, the coil 26 will be energizedsufcietly to attrxct the core 25 therey rockin' g t e receptac es untilthe opening t e conductin members 16 are thrown to the position own in'dotted lines in Fig. 3, whereby the connection will be broken and remainbroken until such excess of current is removed. When the excess isremoved, the weight of the nut and the check-nut will overcome theattraction ofthe coil, and the arts will resume the position` shown infull ines;

Havin thus fully described my invention,

what I c aim as new, and desire to secure by 1. -In a device of thecharacter described, a plurality of rockable receptacles, means forrocking the receptacles, means for electrically separating thereceptacles, means for au-` to currents of varying intensity, comprisinga rod carried by the rece tacles `and screwthreaded Weights disposethereon.

3. -In a device 'of the character described, a

I, 4 k base, conducting-plates on the base, a feed- 3o` Wire connectedto one of the plates, standards on the plates, a plurahty ofelectricallyseparated receptacles supported by the standards inelectrical connection with the plates,

means for making a connection 'between the receptacles when they arerocked and thereby makin a connection between the lates, a coil on tiebase, means actuated b t e coil for urocking the receptacles, means orlimt- Iing the movement of the receptacles, anda 4o wire leading fromone of the lates into the coil and leading from ythe coil? 4. In adevice of the character described, a pair of electricall -separatedplates, standards carried by t e plates, a shaft on the standards,.means `for electrically separating the ends of the shaft, receptaclescarried by the shaft on the opposite sides of the separating means andin electrical connection with the shaft, means for bridging theseparating. means, 'and means for rocking the shaft to render the briding means operative.

In witness whereof I ave hereunto set my hand in the presence of twowitnesses. CHARLES E. SHEDRICK.

Witnesses: l Ei B. WoR'rnING'roN, A A. JoNcAs.

